SRI Hash Generator

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What is Subresource Integrity?

SRI is a new W3C specification that allows web developers to ensure that resources hosted on third-party servers have not been tampered with. Use of SRI is recommended as a best-practice, whenever libraries are loaded from a third-party source.

How is Subresource Integrity different to HTTPS?

TLS ensures that the connection between the browser and the server is secure. The resource itself may still be modified server-side by an attacker to include malicious content, yet still be served with a valid TLS certificate. SRI, on the other hand, guarantees that a resource hasn't changed since it was hashed by a web author.